DE102018126059A1 - METHOD FOR VISUALIZING PROCESS INFORMATION IN THE PRODUCTION OF SHEET METAL COMPONENTS - Google Patents

Abstract

In a method for visualizing production process information (3A) during the production of workpieces (23A, ...) with a flatbed machine tool (3), workpiece image data (23A ', ...) are provided in a production control system (5), the workpiece image data ( 23A ', ...) are assigned to at least one of the workpieces (23A, ...) of a clippings (10) and are designed to be displayed on a display unit (15, 16, 17). Furthermore, workpiece-specific production process information (3A) is provided in the production control system (5), the production process information (3A) being recorded in the flatbed machine tool (3) during the production of the workpieces (23A, ...). Representation options (15A) are provided in a database, each of which is assigned to a specific manufacturing feature of the manufacturing process information (3A) and to which workpiece image data (23A ',. , ...) on a display unit (15). The workpiece image data (23A ', ...) of the at least one of the workpieces (23A, ...) of the clippings (10) are displayed on the display unit (15, 16, 17) taking into account the display options (15A).

Description

The present invention relates to a method for visualizing process information in the production of workpieces, in particular sheet metal components, which can be used to support an sorting process. Furthermore, the invention relates to a production control system for controlling processes in the manufacture of sheet metal components, in particular for controlling at least one display device of a flat bed machine tool, which is used by means of process information to support a sorting process.

As an example of the metalworking industry, many parts of different sizes and quantities are often fed to different processing steps in industrial metal and / or sheet metal processing. For example, workpieces are separated with a machine tool according to a cutting plan in different shapes and quantities from a flat material, for example in a sheet form. For example, the workpieces are cut out of the flat material with a laser. Such machine tools give the machined workpieces, eg. B. the laser cuttings mostly while maintaining the table shape lying next to each other, for example on a pallet or a conveyor belt. From there they are sorted and further processing steps are carried out.

In sheet metal processing, camera-based support systems are used to monitor processing processes such as the sorting process mentioned.
In DE 10 2016 120 131 A1 For example, a camera-based sorting support method for a flat bed machine tool is disclosed. The disadvantage here is that the machine operator does not receive information except for the assembly point for the workpieces or only receives it with great difficulty.

One aspect of this disclosure is based on the task of further simplifying operation for a machine operator when sorting and assigning the workpieces, and to make it more ergonomic and to enable a more targeted and faster assignment of the workpieces.

At least one of these tasks is solved by a method for visualizing manufacturing process information in the manufacture of workpieces with a flatbed machine tool according to claim 1 and by a manufacturing system for manufacturing workpieces according to claim 9. Further developments are specified in the subclaims.

• - Bereitstellen von Werkstückbilddaten in einem Fertigungssteuerungssystem, wobei die Werkstückbilddaten mindestens einem der Werkstücke des Schnittguts zugeordnet und zum Anzeigen auf eine Anzeigeneinheit ausgebildet sind;
• - Bereitstellen von werkstückspezifischer Fertigungsprozessinformation im Fertigungssteuerungssystem, wobei die Fertigungsprozessinformation werkstückspezifisch bei der Fertigung der Werkstücke in der Flachbettwerkzeugmaschine erfasst wurde und Fertigungsmerkmale der in der Flachbettwerkzeugmaschine durchgeführten Trennvorgänge (insbesondere Laserschneidvorgänge) bei der Fertigung der Werkstücke umfasst;
• - Bereitstellen einer Datenbank mit Darstellungsoptionen im Fertigungssteuerungssystem, wobei die Darstellungsoptionen jeweils einem spezifischen Fertigungsmerkmal der Fertigungsprozessinformation zugeordnet sind und auf die Werkstückbilddaten anwendbar sind, um eine spezifisch für ein Fertigungsmerkmal vorgegebene Darstellung von Werkstückbilddaten auf einer Anzeigeeinheit zu bewirken; und
• - Anzeigen der Werkstückbilddaten des mindestens einen der Werkstücke des Schnittguts auf der Anzeigeneinheit unter werkstückspezifischer Berücksichtigung der Darstellungsoptionen.

One aspect of the concepts disclosed herein relates to a method for visualizing manufacturing process information in the manufacture of workpieces, in particular sheet metal components, using a flatbed machine tool. The workpieces are output as clippings on a pallet of the flatbed machine tool, a sorting table or a conveyor belt. The clippings retain a plate-like arrangement according to a plate-like starting material. The process includes the following steps:

• - Provision of workpiece image data in a production control system, the workpiece image data being assigned to at least one of the workpieces of the clippings and being designed for display on a display unit;
• - Providing workpiece-specific manufacturing process information in the manufacturing control system, the manufacturing process information being recorded workpiece-specifically during the manufacture of the workpieces in the flatbed machine tool and including manufacturing features of the separating processes carried out in the flatbed machine tool (in particular laser cutting operations) during the manufacture of the workpieces;
• Providing a database with display options in the production control system, the display options each being assigned to a specific production feature of the production process information and to which workpiece image data can be applied in order to bring about a display of workpiece image data that is specified specifically for a production feature on a display unit; and
• - Display of the workpiece image data of the at least one of the workpieces of the clippings on the display unit, taking the display options into account for the workpiece.

In a further aspect, a manufacturing system for manufacturing workpieces, in particular sheet metal components, has a flatbed machine tool which is designed to output the workpieces as clippings on a pallet of the flatbed machine tool, a sorting table or a conveyor belt, the clippings being arranged in a plate-shaped arrangement according to a plate-shaped starting material is arranged. The production system also has a production control system which is set up to carry out a method as described above for visualizing production process information during the production of workpieces with the flatbed machine tool. The production system also has a display unit for displaying workpiece image data.

The workpiece image data are assigned to at least one of the workpieces of the clippings. The display takes place taking into account workpiece-specific consideration of display options, each of which is assigned to a specific manufacturing feature of the manufacturing process information and can be applied to the workpiece image data in order to bring about a representation of the respective workpiece image data specified specifically for a manufacturing feature on the display unit. The display unit is e.g. B. a monitor of the flatbed machine tool, a display of a mobile unit of a location system or a control monitor, which is also provided, for example, for outputting an image of the clippings taken by a machine interior camera.

In some embodiments of the method, the workpiece image data are read from a production plan stored in the production control system, which is the basis for the production of the workpieces. The workpiece image data can be represented as a graphic representing the clippings, in which the manufacturing features are visually highlighted for an operator. The workpiece image data can be part of an image of the clippings recorded by a machine interior camera and the consideration of a display option can lead to an overlay of image data assigned to a production feature on the image of the clippings.

In some embodiments of the method, a manufacturing feature can be represented as a display option using a color spectrum of the workpiece image data or a workpiece boundary line. A manufacturing feature can relate in particular to the cutting quality of a laser cutting process of the starting material along a contour line. For example, a production feature that is related to the contour of the cutting edge can result in a collision between a processing head of the flatbed machine tool and the starting material to be processed or a separated workpiece, a cut-off during the cutting process, a re-entry into a cutting process, an anomaly in the cutting process such as a long plunge process, a nozzle distance to the plate-shaped starting material outside of a predetermined range, contamination of a protective glass or a plasma sensor signal of the cutting process.

In some embodiments of the method, a production feature can be assigned to a specific position on the cut material which is output in the form of a plate or can relate to the separating contour. For example, a production feature can be obtained from a sensor signal from a production monitoring system, in particular a cutting sensor system, in order in particular to make high-quality information relevant to the process and cutting quality available to the production control system based on the cutting contour.

In general, the display options include graphic visualizations, which are based in particular on color coding and / or symbols.

In some embodiments of the method, a category of workpieces can additionally be formed as a function of a separation strategy on which the sorting process is based, taking into account a subsequent process step, a client, an order or an assembly. Workpieces of the same category can be displayed in the same color or marked with a boundary line surrounding the workpieces of the same category.

The concepts described here have the advantage, for example, that information can be displayed to a machine operator in such a way that a separation process and / or sorting process can be made more efficient. Displaying manufacturing characteristics can also facilitate and improve quality control.

• 1 eine beispielhafte Darstellung einer Werkzeugmaschine bei einem Absortiervorgang,
• 2 eine Skizze zur Verdeutlichung der Darstellung von Informationen aus einer werkstückspezifischen Prozessüberwachung mit Werkstückdaten und
• 3 ein Flussdiagramm eines beispielhaften Verfahrens zum einen Absortiervorgang unterstützenden Anzeigen von Werkstück-Bildern und/oder Auftragsdaten bei der Fertigung von Werkstücken.

Concepts are disclosed therein which make it possible to at least partially improve aspects from the prior art. In particular, further features and their expediencies result from the following description of embodiments with reference to the figures. From the figures show:

• 1 an exemplary representation of a machine tool during a sorting process,
• 2nd a sketch to clarify the representation of information from a workpiece-specific process monitoring with workpiece data and
• 3rd a flowchart of an exemplary method for displaying a sorting process supporting workpiece images and / or order data in the manufacture of workpieces.

Aspects described here are based in part on the knowledge that information about the previous cutting process can be made available to a machine operator when parts are separated after a cutting process on laser flatbed machines. This is possible because machine tools record a plurality of machining parameters, from which, for example, indications of a part quality can emerge. This information can now be visualized for the machine operator in terms of components or contours.

In accordance with the concepts disclosed herein, cut components can be graphically visualized in a graphic of the panel assignment as a function of process characteristics and influences. For example, colors and symbols can be used for this. For example, information about a collision between the laser processing nozzle and the sheet metal can not only be communicated to a machine operator with a time stamp, but it can also be recorded in a production-specific manner and transmitted in a workpiece-specific manner, in particular which component is affected and e.g. B. where the collision happened on the contour of the component. A resulting reduction in quality can thus be localized and assessed quickly and precisely.

In the case of flat bed machine tools, a machine operator can be informed if a laser processing nozzle (from which the laser cutting beam emerges and which is moved over the sheet along cutting contours) would collide or collide with the processed sheet, usually a tilted cut-out workpiece. In accordance with the concepts disclosed herein, the machine operator can now be able to localize and inspect a quality reduction of the workpiece caused by the collision promptly and particularly quickly, in particular in less than 1 s.

According to the concepts disclosed herein, it is now possible to display information on the production process in a timely manner and in connection with a generated workpiece, the presentation of, for example, image content taking place in a manner which takes into account the physical circumstances of human perception and the reception of information. In particular, the display of information is aimed at enabling the machine operator to perceive the information shown in a certain way and, moreover, to make it useful.

1 time schematically a manufacturing system 1 which is a flatbed machine tool 3rd and a manufacturing control system 5 includes.

To clarify the environment of the industrial machining of workpieces mentioned here shows 1 a sorting process such as that used in connection with the flat bed machine tool, for example a laser cutting machine 3rd can be made. According to a production plan 5A that in the production control system 5 workpieces 23A , 23A1 , 23A2 , 23A3 , ... 23D (also as clippings here 10th designated) cut and an operator 31 the flatbed machine tool 3rd for sorting, for example on a sorting table 9 provided. The workpieces lie there 23A , 23A1 , 23A2 , 23A3 , ... 23D side by side on a pallet 9A , which is loaded with the starting material for the cutting process into the laser cutting machine. After the cutting process, the workpieces are output, for example, while maintaining an original sheet shape, the sheet shape being determined by the flat material fed to the laser cutting machine. In the case of a laser cutting machine, the workpieces were 23A , 23A1 , 23A2 , 23A3 , ... 23D of the residual material 34 (dashed area) of the flat material separated by laser cutting. however, the workpieces are still in that of the residual material 34 formed table structure before. In 1 the sorting process takes place directly from the pallet 9A the flatbed machine tool 3rd . Alternatively, sorting e.g. B. from one to the flatbed machine tool 3rd subsequent conveyor belt.

In general, the manufacturing control system 5 be designed to be connected to one or more flatbed machine tools positioned in a production hall via wireless or wired communication links. In general, the manufacturing control system 5 to control process sequences / manufacturing steps in the industrial production of workpieces with a machine tool. The production control system can do this 5 Receive information about the process flows / manufacturing steps as well as status information of the machine tool. The production control system 5 can be implemented in a data processing device. This can be a single electronic data processing device (server) or a group of several data processing devices (server group / cloud). The data processing device or the network can be provided locally in the production facility or can be set up outside in a decentralized manner.

For example, the flatbed machine tool passes 3rd Manufacturing process information 3A to the production control system 5 . For this, z. B. a process data signal connection s_p in front.

1 also schematically illustrates that the manufacturing plan 5A digital in the production control system 5 is filed. In the production plan 5A is z. B. Order information for the industrial processing of production plan-specific workpieces. Production plans generally include order information, such as workpiece data 23A ' , ... 23D '' is available in the form of geometry data records of the workpiece specific to the machining plan and / or in the form of a separation plan The separation plan specifies how the workpieces with z. B. a laser beam can be cut out of the starting panel. Furthermore, the production schedule 5A one or include several machining and workpiece parameters of the machining plan-specific workpieces.

The production control system transfers for a cutting process 5 e.g. B. Manufacturing instructions of the manufacturing plan 5A (especially the separation plan) to the flatbed machine tool 3rd ; A manufacturing data signal connection is an example of this s_f in 1 indicated.

In 1 is also a camera 11 (Machine interior camera) for the imaging recording of the sorting process is shown schematically. With the camera 11 For example, you can monitor which sheet has been placed and how many workpieces or which workpieces of a cut sheet have already been sorted. Several cameras can also be provided. To recognize a cut board z. B a pattern or a code (see also 2nd ) are recorded. The camera 11 transfers image data to the production control system 5 , for example via a camera image data signal connection s_k .

The production control system 5 is set up to the operator 31 visually support through ads. For example, it generally passes image data that e.g. B. can also include the image data of the camera to a display unit 17th . This is for example via an image data signal connection s_a2 with the production control system 5 connected. The display unit 17th is for example a control monitor on which a recording 21 the camera 11 as well as order information 19th (for example, in text form). In general, in addition to production-specific aspects, information about the order, readable by man and / or machine, can be coded and / or shown in writing and / or as a figure on displays in the production system.

An example is in 1 also a localization system with location units 13 indicated. The location units 13 are connected via localization data signal connection s_1 with the production control system 5 in connection. They are trained in a location area 13A e.g. B. Movements of one hand of the operator 31 when sorting or to capture the current positions of mobile units of the localization system. In 1 is an example of a mobile unit 16A on a dolly 33 been filed. In particular, those workpieces are on the dolly 33 filed for a specific order (here workpieces 23A 2nd ) in subsequent manufacturing steps with the mobile unit 16A are to be followed. For this, position data can be sent to the production control system 5 over the location data signal connection s_1 to be provided.

The mobile unit 16A has a display unit 16 on. Information from the production control system can be obtained via an image data signal connection s_a3 5 to the mobile unit 16A sent and on the display unit 16 be issued.

Alternatively or in addition, a monitor of the flatbed machine tool can be used 3rd (Ad unit 15 in 1 ) can be provided. The data shown does not always have to completely represent the entire information content of a workpiece or manufacturing process. Rather, the displays can contextually show the data required for the corresponding manufacturing process, for example the next manufacturing process for logistics, part geometry for picking, component tolerances for quality inspection. Representation parameters such as size, color, movement and flashing are suitable means of emphasizing and supporting currently important information.

In particular, the manufacturing control system 5 trained to display the workpiece-specific manufacturing process information with such display options 3A the machine operator 31 to make it accessible. Representation options are an example 15A in 1 in the production control system 5 and can be stored together with the manufacturing process information 3A and the workpiece data 23A ' , ... 23D 'via the image data signal connections s_a1 , ... to the display units 15 , 16 , 17th be issued.

In 2nd is a view of on the display unit 15 shown monitor image data 7 shown, in which various aspects of the identification of manufacturing process information for individual cut workpieces are clarified. The monitor displays can be viewed by the operator 31 be used to take the manufacturing process information into account when sorting. In particular, it can make it easier to check the part quality, since the operator is presented with information about the manufacturing process, which can influence the quality of the manufacturing of a workpiece, among other things.

2nd shows the example with the camera 11 supervision of the clippings 10th in 1 . The clippings 10th includes four groups of differently shaped workpieces 23A , ... 23D on the support element (the pallet 9A in 1 ) are arranged. Boundary lines are indicated for clarification, which are the workpiece assemblies 24A , ... 24D enclose. The clippings 10th was at a known position in the room using the correspondingly movable palette 9A placed. It should be noted that the workpieces 23A , ... 23D and the rest of the material 34 often hardly changes in appearance for the operator distinguish from each other. This is particularly the case when very fine laser cutting lines are used. In this respect, the representation in 2nd in its clarity on the real recognizability of cut workpieces. A large monitor has the advantage that the entire metal sheet can be displayed with all the parts cut out and the parts of a workpiece assembly distributed over the sheet, e.g. B. can be highlighted by color coding. Thanks to the clear visualization of the assignment, even small parts can be reliably B. on the pallet 9A be identified.

In some embodiments, the flat material can be provided with a machine-readable code (e.g. data matrix code: DMC). The machine-readable code can always be provided at a predetermined position for the reproducible positioning of the clippings. An image can appear on the monitor display 45 of the code, in particular a digital image.

The code can also be used automatically in the production control system 5 identify the separation plan with which the clippings were generated. From the known position of the clippings and the separation plan can be made in the production control system 5 the positions of the workpieces are derived. So z. B. the shapes of the workpieces are highlighted in the camera image. For example, different workpieces with workpiece data records 23A ' , ... 23D 'are shown with different colors or the boundaries of the workpieces can be differentiated and emphasized. Other output and labeling options such as flashing, flickering, fluttering, wobbling, rotating, etc. can also be implemented. In addition, positions of microjoints and part markings can also be shown.

The known positions of the workpieces can also be used for workpiece-specific manufacturing process information 3A to make it visible to the operator 31 display. In other words, in the graphic representation of a workpiece z. B. additional information from the process monitoring of the manufacturing process can be visualized selectively or in the form of a contour section.

• Es werden Werkstückbilddaten 23A', ... im Fertigungssteuerungssystem 5 bereitgestellt. Diese können auf einer Bilderfassung mit einer Kamera (z. B. Kamera 11) oder auf im Fertigungsplan 5A hinterlegten Bilddaten basieren. Die Werkstückbilddaten 23A', ... können z. B. aus dem im Fertigungssteuerungssystem 5 abgelegten Fertigungsplan 5A, der der Fertigung der Werkstücke 23A, ... zugrunde lag/liegt, gelesen werden. Die Werkstückbilddaten 23A', ... sind dabei mindestens einem der Werkstücke 23A, ... des Schnittguts 10 zugeordnet und sie können auf einer Anzeigeneinheit, z. B. einer der Anzeigeneinheit 15, 16, 17, angezeigt werden.

This can be done as part of a process for visualizing manufacturing process information 3A in the manufacture of workpieces 23A , ... with a flatbed machine tool 3rd The following steps are carried out:

• There will be workpiece image data 23A ' , ... in the production control system 5 provided. These can be recorded on an image with a camera (e.g. camera 11 ) or in the production plan 5A stored image data based. The workpiece image data 23A ' , ... can e.g. B. from the in the production control system 5 filed production plan 5A , the manufacture of the workpieces 23A , ... was / is to be read. The workpiece image data 23A ' , ... are at least one of the workpieces 23A , ... of the clippings 10th assigned and they can on an ad unit, e.g. B. one of the display unit 15 , 16 , 17th , are displayed.

Furthermore, workpiece-specific manufacturing process information 3A in the production control system 5 provided. This became workpiece-specific when manufacturing the workpieces 23A , ... in the flatbed machine tool 3rd captures and includes manufacturing features of those in the flatbed machine tool 3rd performed separations. A manufacturing feature can have a specific position on the plate-shaped material to be cut 10th be assigned or related to the cutting contour. Manufacturing features can be obtained from a sensor signal from a manufacturing monitoring system, in particular a cutting sensor system, in order to provide the manufacturing control system with high-quality, process and cutting quality-related information in particular 5 to provide.

There is also a database with display options 15A in the production control system 5 before, the display options 15A each have a specific manufacturing characteristic of the manufacturing process information 3A assigned. The display options 15A are on the workpiece image data 23A ' , ... applicable in such a way that a representation of workpiece image data that is specified specifically for a production feature 23A ' , ... on the display unit 15 is effected. So a manufacturing feature z. B. by means of a color spectrum of the workpiece image data 23A ' , ... or a workpiece boundary line 41 be presented as a display option or include a specific symbol. Manufacturing features can relate in particular to the cutting quality of a laser cutting process of the starting material along a contour line.

The workpiece image data are in accordance with the method 23A ' , ... of at least one of the workpieces 23A , ... of the clippings 10th on the display unit taking the display options into account for the workpiece 15A displayed. For example, the workpiece image data 23A ' , ... as one the clippings 10th Representing graphic are shown, in which the manufacturing features for an operator 31 are visually highlighted. Go doing z. B. the workpiece image data 23A ' , ... on part of one from a machine interior camera 11 captured image of the clippings 10th back, one of the display options can be considered 15A for a superimposition of image data assigned to a production characteristic on the image of the clippings 10th to lead.

• - Die Schneidqualität oder weitere relevante Parameter können mittels eines Farbspektrum für den Bediener dargestellt werden.
• - Werkstücke, die Kollisionen mit dem Schneidkopf ausgesetzt waren, können hervorgehoben werden, um eine gesonderte Qualitätskontrolle auszulösen. Dies gilt auch für Werkstücke, bei deren Fertigung z. B. ein Schnittabriss, ein Wiedereinstieg, eine Anomalie wie ein zu langedauerndes Einstechen oder ein ungewöhnlicher Düsenabstand, Verschmutzungen eines Schutzglases (Streulicht, Fokusshift) und/oder Plasmasensorsignale aufgetreten sind.
• - Neben einer statischen Visualisierung auf der Tafel können, wenn eine Entnahme des Werkstücks z. B. mit dem Lokalisierungssystem detektiert wird, die Informationen gesondert und nochmals deutlicher dargestellt werden.
• - In einigen Ausführungsformen kann eine Überlagerung der Informationen mit einem Livebild der Maschineninnenraumkamera vorgenommen werden oder auf ein Livebild am Ausgang der Maschine, z. B. an einem Palettenwechsler, dargestellt werden.
• - Ferner können die Fertigungsprozessinformation in eine Liveüberlagerung des Fertigungsprozesses integriert werden oder erst Fertigstellung eines Schneidvorgangs in die Ansicht der nach Tafel übertragen werden.

For example, the following additional information can be provided to the operator using the manufacturing process information 31 be visualized:

• - The cutting quality or other relevant parameters can be displayed for the operator using a color spectrum.
• - Workpieces that have been subjected to collisions with the cutting head can be highlighted to trigger a separate quality control. This also applies to workpieces that are manufactured e.g. B. a cut, re-entry, an anomaly such as a long-lasting plunge or an unusual nozzle spacing, contamination of a protective glass (scattered light, focus shift) and / or plasma sensor signals have occurred.
• - In addition to a static visualization on the board, if the workpiece is removed e.g. B. is detected with the localization system, the information is shown separately and more clearly.
• In some embodiments, the information can be overlaid with a live image of the machine interior camera or on a live image at the exit of the machine, e.g. B. on a pallet changer.
• - Furthermore, the manufacturing process information can be integrated into a live overlay of the manufacturing process, or it can only be transferred to the view of the table according to the completion of a cutting process.

Shows in the form of a schematic flow diagram 3rd an exemplary process 49 to visualize manufacturing process information in the manufacture of workpieces divided into the following steps.

In one step 51 become manufactured workpieces 23A , 23A1 , ... on the sorting table 9 provided. For example, the workpieces 23A ... are determined for sorting at the sorting point, ie from the sorting table 9 out for the operator 31 are positioned accessible. This can include information about poorly cut or already dropped workpieces 23A .. are taken into account.

In one step 53 becomes the workpiece-specific manufacturing process information 3A in the production control system 5 provided, the manufacturing process information 3A workpiece-specific when manufacturing the workpieces 23A , ... in the flatbed machine tool 3rd was recorded and the manufacturing characteristics of the flatbed machine tool 3rd performed separation processes in the manufacture of the workpieces 23A , ... includes.

In one step 55 can save the workpiece image data 23A ' , ... from one in the production control system 5 filed production plan 5A , the manufacture of workpieces 23A , ...) on which the workpiece image data is based 23A ' , ... as one the clippings ( 10th ) representing graphics, in which the manufacturing features for an operator ( 31 ) are visually highlighted. Alternatively or additionally, the workpiece image data 23A ' , ... part of one from a camera 11 captured image of the clippings 10th his. In particular, the consideration of a display option 15A for a superimposition of image data assigned to a production feature on the image of the clippings 10th to lead.

In one step 57 become a database with display options 15A in the production control system 5 provided with the display options 15A each have a specific manufacturing characteristic of the manufacturing process information 3A are assigned and to the workpiece image data 23A ' , ... are applicable to a representation of workpiece image data specified specifically for a production feature 23A ' , ... on a display unit 15 to effect.

In one step 59 can save the workpiece image data 23A ' , ... of at least one of the workpieces 23A , ... of the clippings 10th on the ad unit 15 , 16 , 17th taking the display options into account for the workpiece 15A are displayed.

In one step 59A can a manufacturing feature by means of a color spectrum ( R , G , B ) that in the workpiece image data 23A ' , ... or in a workpiece boundary line ( 41 ) is implemented as color coding, as a display option.

In one step 59B can additionally or alternatively a manufacturing feature by means of a workpiece boundary line implemented with a color coding 41 being represented.

With both steps 59A and 59B A manufacturing feature can relate to the cutting quality of a laser cutting process of the starting material along a contour line.

• - einer Visualisierung der oben genannten Punkte mit einer Simulation, die zusammen mit einer numerischen Steuerung (NC) auf einer grafischen Benutzeroberfläche oder Benutzerschnittstelle, die die Kommunikation zwischen Mensch und Maschine ermöglicht (HMI), dargestellt werden kann,
• - in Abhängigkeit der Vereinzelungsstrategie (Folgeprozessschritt, Kunde, Auftrag, Baugruppe, etc.) einer farblich einheitlichen Kennzeichnung von Werkstücken der gleichen Kategorie und
• - einem Anzeigen von Stichproben für eine Qualitätskontrolle und von Informationen zu Messpunkten und Merkmalen.

The presentation can be accompanied by e.g. B.

• - a visualization of the above-mentioned points with a simulation that can be displayed together with a numerical control (NC) on a graphical user interface or user interface that enables communication between man and machine (HMI),
• - Depending on the separation strategy (follow-up process step, customer, order, assembly, etc.) a color-coded identification of workpieces in the same category and
• - Displaying samples for quality control and information on measuring points and features.

With the concepts proposed herein, u. a. Sensor signals, which are available for various aspects of the manufacturing process, are provided to the operator, so that information relating to the manufacturing process can be displayed in connection with a generated workpiece, the presentation of image content, for example, being carried out in a manner that is based on the physical conditions of human perception and Taking information into consideration. In particular, the production information in the display can be designed to enable the machine operator to perceive the information shown in a certain way in the first place and to design it appropriately for work steps. Furthermore, by integrating a cutting sensor system into a cutting head, e.g. B. Further high-quality, process and cutting quality-relevant information can be made available for use in the quality inspection.

Exemplary implementations of the representation of manufacturing process information are in 2nd shown schematically. One recognizes for the clippings shown 10th a representation of the plate edge 35 and four demarcation line 24A , ... 24D , each graphic representation of workpiece data 23A ' , ... 23D 'separate from each other. You can also see that the workpiece 23A1 has already been sorted, ie no workpiece data 23A'1 are displayed. Furthermore is an image 45 faded in for the code of the processed material sheet.

The following examples of the combination of display options and manufacturing process information are given in 2nd schematically indicated: For a representation of workpiece data 23A2 'a cutting contour is dashed in an area as a symbol 39 shown for a cut-off. For a representation of workpiece data 23B ' is along a cutting contour 41 a color coding with red R , Green G and blue B (in 2nd shown with puncturing densities), which indicates a distance error during the cutting process as a symbol. For a representation of workpiece data 23C ' becomes a highlighting of an area along a cutting contour 41A in which a puncture time does not correspond to the standard duration. Furthermore, the entire workpiece can be painted with a warning color or with special hatching 43 be identified. The display of workpiece data is another example of a display of manufacturing process information 23D ' a temperature symbol 37 been overlaid.

It is noted that, depending on a separation strategy on which the sorting process is based, taking into account a subsequent process step, a client, an order or an assembly, categories of workpieces 23A , ... can be formed and for example workpieces 23A , ... of the same category can be represented in the same color or with one of the workpieces 23A , ... a boundary line surrounding the same category 24A , ... can be marked.

It is explicitly emphasized that all features disclosed in the description and / or claims are considered separate and independent from each other for the purpose of the original disclosure as well as for the purpose of limiting the claimed invention regardless of the feature combinations in the embodiments and / or the claims should. It is explicitly stated that all range indications or indications of groups of units disclose any possible intermediate value or subset of units for the purpose of the original disclosure as well as for the purpose of restricting the claimed invention, in particular also as a limit of a range specification.

QUOTES INCLUDE IN THE DESCRIPTION

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Patent literature cited

• DE 102016120131 A1 [0003]

Claims (10)

Method for visualizing manufacturing process information (3A) in the manufacture of workpieces (23A, ...), in particular sheet metal components, with a flatbed machine tool (3), the workpieces (23A, ...) being cut material (10) on a pallet (9A) of the flatbed machine tool (3), a sorting table (9) or a conveyor belt and the cut material (10) is in a plate-shaped arrangement according to a plate-shaped starting material, with the steps: Providing workpiece image data (23A ', ...) in a production control system (5), the workpiece image data (23A', ...) being assigned to at least one of the workpieces (23A, ...) of the clippings (10) and being displayed a display unit (15, 16, 17) is formed, Provision of workpiece-specific manufacturing process information (3A) in the manufacturing control system (5), the manufacturing process information (3A) being recorded workpiece-specifically in the manufacture of the workpieces (23A, ...) in the flatbed machine tool (3) and manufacturing characteristics of those carried out in the flatbed machine tool (3) Separating processes in the manufacture of the workpieces (23A, ...), Providing a database with display options (15A) in the production control system (5), the display options (15A) each being assigned to a specific production feature of the production process information (3A) and to which the workpiece image data (23A ', ...) can be applied in order to provide a specific for cause a production feature to display workpiece image data (23A ', ...) on a display unit (15), and Displaying the workpiece image data (23A ', ...) of the at least one of the workpieces (23A, ...) of the clippings (10) on the display unit (15, 16, 17) taking into account the display options (15A). Procedure according to Claim 1 , the workpiece image data (23A ', ...) being read from a production plan (5A) stored in the production control system (5), which is the basis for the production of workpieces (23A, ...), and / or the workpiece image data (23A ', ...) are represented as a graphic representing the clippings (10), in which the manufacturing features for an operator (31) are visually highlighted. Procedure according to Claim 1 , the workpiece image data (23A ', ...) being part of an image of the clippings (10) recorded by a camera (11) and the consideration of a display option (15A) for superimposing image data associated with a production feature on the image of the clippings ( 10) leads. Method according to one of the preceding claims, wherein a manufacturing feature is represented as a display option by means of a color spectrum (R, G, B), which is implemented as color coding in the workpiece image data (23A ', ...) or in a workpiece boundary line (41), and / or wherein a manufacturing feature relates to the cutting quality of a laser cutting process of the starting material along a contour line. Method according to one of the preceding claims, wherein a, in particular cutting contour-related, manufacturing feature - a collision between a processing head of the flatbed machine tool (3) and the starting material to be processed or a severed workpiece (23A, ...), - a cut-off during a cutting process, - a re-entry into a cutting process, an anomaly such as a long piercing process during the cutting process, a nozzle distance, in particular from flat material, outside a predetermined range, - contamination of a protective glass or - A plasma sensor signal of the cutting process. Method according to one of the preceding claims, wherein a manufacturing feature is assigned to a specific position on the cut material (10) which is output in the form of a plate or relates to a separating contour and / or wherein a manufacturing feature is based on a sensor signal from a production monitoring system, in particular a cutting sensor system of the flatbed machine tool (3) , is obtained in order to provide the production control system (5) with high quality, process and cutting quality-related information related to the cutting contour. Method according to one of the preceding claims, wherein the display options comprise graphic visualizations which are based in particular on a color coding (43, R, G, B) and / or on symbols (37, 39, 41). Method according to one of the preceding claims, a category of workpieces (23A, ...) being formed in addition as a function of a separation strategy on which the sorting process is based, taking into account a subsequent process step, a client, an order or an assembly, and the workpieces (23A,. ..) of the same category are displayed in the same color or are marked with a boundary line (24A, ...) surrounding the workpieces (23A, ...) of the same category. Manufacturing system (1) for manufacturing workpieces (23A, ...), in particular sheet metal components, with: a flat bed machine tool (3), which is designed to output the workpieces (23A, ...) as clippings (10) on a pallet (9A) of the flat bed machine tool (3), a sorting table (9) or a conveyor belt, the clippings (10) is arranged in a plate-like manner according to a plate-shaped starting material, according to a production control system (5) which is set up to follow a method for visualizing production process information (3A) in the production of workpieces (23A, ...) with the flatbed machine tool (3) one of the preceding claims, and a display unit (15, 16, 17) for displaying workpiece image data (23A ', ...) which are assigned to at least one of the workpieces (23A, ...) of the clippings (10), below workpiece-specific consideration of display options (15A), each of which is assigned to a specific manufacturing feature of the manufacturing process information (3A) and on the workpiece image data (23A ', ...) can be used in order to bring about a display of the respective workpiece image data (23A', ...) which is specified specifically for a production feature on the display unit (15). Production control system according to Claim 9 , The display unit (15, 16, 17) a monitor of the flatbed machine tool (3), a display of a mobile unit, in particular a location system (13), or a control monitor for outputting an image recorded by a camera (11), in particular a machine interior camera of the clippings (10).

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